# Uncategorized **URL:** https://community.stereolabs.com/c/uncategorized/1.md?page=1 [Latest](https://community.stereolabs.com/latest.md) · [Categories](https://community.stereolabs.com/categories.md) · [Tags](https://community.stereolabs.com/tags.md) **Page:** 2 --- ## [Perfect or near-perfect audio synchronization](https://community.stereolabs.com/t/perfect-or-near-perfect-audio-synchronization/888)
**Author:** [@noyes108](https://community.stereolabs.com/u/noyes108)\ **Replies:** 0\ **Last updated:** [February 17, 2022, 7:06pm UTC](https://community.stereolabs.com/t/perfect-or-near-perfect-audio-synchronization/888 "2022-02-17T19:06:20Z")
For our ZED project we need to record and synchronize audio with our stereo video with absolute minimum delay. Does anyone have any suggestions for or success stories doing this? Simply running ZED\_Explorer and an audio … --- ## [Magnetic\_heading accuracy when the camera is vertical](https://community.stereolabs.com/t/magnetic-heading-accuracy-when-the-camera-is-vertical/850)
**Author:** [@kimzed](https://community.stereolabs.com/u/kimzed)\ **Replies:** 0\ **Last updated:** [February 8, 2022, 3:35pm UTC](https://community.stereolabs.com/t/magnetic-heading-accuracy-when-the-camera-is-vertical/850 "2022-02-08T15:35:39Z")
I have tested the magnetic\_heading (absolute direction in degree to north), and I get the feeling the camera was intended to be held horizontally to have the direction. I wanted to have confirmation on that, if an user w… --- ## [Simple app for RGB recognition in live image for ZED2i](https://community.stereolabs.com/t/simple-app-for-rgb-recognition-in-live-image-for-zed2i/822)
**Author:** [@iosubsystems](https://community.stereolabs.com/u/iosubsystems)\ **Replies:** 1\ **Last updated:** [February 8, 2022, 7:29am UTC](https://community.stereolabs.com/t/simple-app-for-rgb-recognition-in-live-image-for-zed2i/822 "2022-02-08T07:29:22Z")
Hi, Is there a simple software/application that I can use with ZED2i camera to recognize RGB values in the specific area of the frame? Retrive RGB values from that area? I am a non-programer and would be very helpful … --- ## [Skeleton tracking with different avatar](https://community.stereolabs.com/t/skeleton-tracking-with-different-avatar/767)
**Author:** [@luciavema](https://community.stereolabs.com/u/luciavema)\ **Replies:** 1\ **Last updated:** [January 26, 2022, 9:30am UTC](https://community.stereolabs.com/t/skeleton-tracking-with-different-avatar/767 "2022-01-26T09:30:58Z")
Hello, I am trying the Skeleton tracking example, with a different avatar 3d model. In this case, it is a 3d custom model, autorigged with mixamo. I follow the steps, integrating the model in Unity, configuring it as hu… --- ## [Camera sensitivity under direct sunlight](https://community.stereolabs.com/t/camera-sensitivity-under-direct-sunlight/810)
**Author:** [@Hamed](https://community.stereolabs.com/u/Hamed)\ **Replies:** 3\ **Last updated:** [January 21, 2022, 9:22pm UTC](https://community.stereolabs.com/t/camera-sensitivity-under-direct-sunlight/810 "2022-01-21T21:22:10Z")
Hi, I am new to computer vision and want to select a depth camera to detect terrains and especially stairs and calculate stairs step size. In my application, I want to use that in indoor and outdoor. So the camera shou… --- ## [All data collection](https://community.stereolabs.com/t/all-data-collection/594)
**Author:** [@narayaba](https://community.stereolabs.com/u/narayaba)\ **Replies:** 1\ **Last updated:** [December 23, 2021, 9:18am UTC](https://community.stereolabs.com/t/all-data-collection/594 "2021-12-23T09:18:42Z")
Can you collect the stereo video, depth map, point cloud and the sensor readings all at the same time via the sdk viewer? --- ## [ROS Multi-Camera](https://community.stereolabs.com/t/ros-multi-camera/155)
**Author:** [@MBaranPeker](https://community.stereolabs.com/u/MBaranPeker)\ **Replies:** 1\ **Last updated:** [December 23, 2021, 8:55am UTC](https://community.stereolabs.com/t/ros-multi-camera/155 "2021-12-23T08:55:07Z")
How can we run multiple ROS Wrapper for multi cameras should we change zed\_id in common.yaml? What about the published topics. Will topic name changed base on camera\_ID? --- ## [Can this camera output the point cloud of specific location in the image](https://community.stereolabs.com/t/can-this-camera-output-the-point-cloud-of-specific-location-in-the-image/762)
**Author:** [@ujs1514lee](https://community.stereolabs.com/u/ujs1514lee)\ **Replies:** 1\ **Last updated:** [December 23, 2021, 8:27am UTC](https://community.stereolabs.com/t/can-this-camera-output-the-point-cloud-of-specific-location-in-the-image/762 "2021-12-23T08:27:00Z")
Here is my idea： I want to use python + YOLO +zed 2i to get the position of the objected being detected. Can I use depth\_sensing.py to get the point cloud and coordinate of specific location in the image? For example, … --- ## [Resolution problem](https://community.stereolabs.com/t/resolution-problem/639)
**Author:** [@kankanzheli](https://community.stereolabs.com/u/kankanzheli)\ **Replies:** 1\ **Last updated:** [December 22, 2021, 12:42pm UTC](https://community.stereolabs.com/t/resolution-problem/639 "2021-12-22T12:42:27Z")
In the process of using the camera, it is found that when the image is obtained at a higher resolution, the image will appear brighter. This is obviously conducive to image recognition. However, 1280 \* 720 is required in… --- ## [About use mmdetection with Zed](https://community.stereolabs.com/t/about-use-mmdetection-with-zed/731)
**Author:** [@kankanzheli](https://community.stereolabs.com/u/kankanzheli)\ **Replies:** 1\ **Last updated:** [December 21, 2021, 4:27pm UTC](https://community.stereolabs.com/t/about-use-mmdetection-with-zed/731 "2021-12-21T16:27:52Z")
I’m sorry to ask this question. I am now trying to use mmdetection to directly detect the image obtained by zed mini or the data in the SVO file obtained by zed mini camera. To tell you the truth, it’s a difficult job f… --- ## [How to obtain a high precision depth map](https://community.stereolabs.com/t/how-to-obtain-a-high-precision-depth-map/713)
**Author:** [@LY-leyou](https://community.stereolabs.com/u/LY-leyou)\ **Replies:** 2\ **Last updated:** [December 20, 2021, 2:21am UTC](https://community.stereolabs.com/t/how-to-obtain-a-high-precision-depth-map/713 "2021-12-20T02:21:39Z")
What do the numbers in the array information printed out by the depth map mean? The array I printed out is all integers, ranging from 0 to 11, which feels wrong. Does the number represent the distance between the camera… --- ## [Is velocity information filtered?](https://community.stereolabs.com/t/is-velocity-information-filtered/603)
**Author:** [@jralves93](https://community.stereolabs.com/u/jralves93)\ **Replies:** 1\ **Last updated:** [October 25, 2021, 2:48pm UTC](https://community.stereolabs.com/t/is-velocity-information-filtered/603 "2021-10-25T14:48:17Z")
About Zed 2i: Does the velocity information (vector) about a detected person gets filtered by kalman filter (or other), or is it just raw velocity using difference between two frames? --- ## [INVALID\_HANDEL Using Python API](https://community.stereolabs.com/t/invalid-handel-using-python-api/528)
**Author:** [@yuvalg1987](https://community.stereolabs.com/u/yuvalg1987)\ **Replies:** 1\ **Last updated:** [October 4, 2021, 1:23pm UTC](https://community.stereolabs.com/t/invalid-handel-using-python-api/528 "2021-10-04T13:23:47Z")
Hi, I’m trying to process images coming from the ZED camera using CuPy (A GPU equivalent to NumPy). I’m currently getting an INVALID\_HANDLE error that I cannot seem to overcome. reading some github threads it seems to b… --- ## [Clarity between buying Zed2i with Polarizer or without Polarizer](https://community.stereolabs.com/t/clarity-between-buying-zed2i-with-polarizer-or-without-polarizer/404)
**Author:** [@isola](https://community.stereolabs.com/u/isola)\ **Replies:** 2\ **Last updated:** [September 30, 2021, 2:13pm UTC](https://community.stereolabs.com/t/clarity-between-buying-zed2i-with-polarizer-or-without-polarizer/404 "2021-09-30T14:13:37Z")
I understand Zed2i comes with both polarizer and without. Can someone please explain/ recommend an application where the polarizer can be used? Should I buy the Zed2i with Polarizer or without Polarizer? Many thanks --- ## [Fusion of 3D Stereo-camera SLAM with 3D LiDAR SLAM](https://community.stereolabs.com/t/fusion-of-3d-stereo-camera-slam-with-3d-lidar-slam/464)
**Author:** [@FL399](https://community.stereolabs.com/u/FL399)\ **Replies:** 2\ **Last updated:** [September 7, 2021, 12:38pm UTC](https://community.stereolabs.com/t/fusion-of-3d-stereo-camera-slam-with-3d-lidar-slam/464 "2021-09-07T12:38:20Z")
Hi everyone. I ordered ZED 2 for my doctoral thesis that I am going to use as a useful tool for my project. What I intend to do is fusing 3D SLAM via ZED 2 with 3D LiDAR. Both of them are installed on the robot and I hav… --- ## [The coordinate of skeleton in unity sample skeletontracking](https://community.stereolabs.com/t/the-coordinate-of-skeleton-in-unity-sample-skeletontracking/419)
**Author:** [@Kismetzc](https://community.stereolabs.com/u/Kismetzc)\ **Replies:** 0\ **Last updated:** [August 16, 2021, 8:06am UTC](https://community.stereolabs.com/t/the-coordinate-of-skeleton-in-unity-sample-skeletontracking/419 "2021-08-16T08:06:53Z")
I have some questions about it. 1 The accuracy of my saved coordinates is only 1.0f, how can I improve the accuracy? 2 How to get the coordinates of the chest？ 3 How about the accuracy of using hip as the midpoint of … --- ## [How to save 3D joint coordinates of the Human skeleton](https://community.stereolabs.com/t/how-to-save-3d-joint-coordinates-of-the-human-skeleton/401)
**Author:** [@isola](https://community.stereolabs.com/u/isola)\ **Replies:** 2\ **Last updated:** [August 9, 2021, 9:38am UTC](https://community.stereolabs.com/t/how-to-save-3d-joint-coordinates-of-the-human-skeleton/401 "2021-08-09T09:38:50Z")
I will like to ask if it is possible to save 3D coordinates of each joint. The aim is to save multiple human poses/skeletons in csv format. Can you please help --- ## [When do you plan on announcing ZED2i?](https://community.stereolabs.com/t/when-do-you-plan-on-announcing-zed2i/216)
**Author:** [@Tetsujinfr](https://community.stereolabs.com/u/Tetsujinfr)\ **Replies:** 3\ **Last updated:** [August 3, 2021, 12:09pm UTC](https://community.stereolabs.com/t/when-do-you-plan-on-announcing-zed2i/216 "2021-08-03T12:09:13Z")
Hi, when do you plan to announce the ZED2i ? Curious about the form factor and new functions/capabilities. Thanks --- ## [GreenScreen.shader not work under HDRP](https://community.stereolabs.com/t/greenscreen-shader-not-work-under-hdrp/342)
**Author:** [@YanChark](https://community.stereolabs.com/u/YanChark)\ **Replies:** 1\ **Last updated:** [July 21, 2021, 7:30am UTC](https://community.stereolabs.com/t/greenscreen-shader-not-work-under-hdrp/342 "2021-07-21T07:30:55Z")
GreenScreen.shader not work,is there a shader that supports HDRP？ --- ## [Where are “Materials/Lighting/Mat\_ZED\_Greenscreen\_HDRP\_Lit”？](https://community.stereolabs.com/t/where-are-materials-lighting-mat-zed-greenscreen-hdrp-lit/344)
**Author:** [@YanChark](https://community.stereolabs.com/u/YanChark)\ **Replies:** 1\ **Last updated:** [July 19, 2021, 7:33am UTC](https://community.stereolabs.com/t/where-are-materials-lighting-mat-zed-greenscreen-hdrp-lit/344 "2021-07-19T07:33:00Z")
In HDRP,GreenScreen not work?Please tell me how to make it work.And Where are “Materials/Lighting/Mat\_ZED\_Greenscreen\_HDRP\_Lit”？ --- ## [Tracking objects detected with a custom object detector](https://community.stereolabs.com/t/tracking-objects-detected-with-a-custom-object-detector/248)
**Author:** [@JordiG](https://community.stereolabs.com/u/JordiG)\ **Replies:** 4\ **Last updated:** [July 19, 2021, 4:06am UTC](https://community.stereolabs.com/t/tracking-objects-detected-with-a-custom-object-detector/248 "2021-07-19T04:06:03Z")
How can we use object tracking function (integrated in the ZED SDK) to track objects detected with a custom object detector? Thank you in advance, Jordi --- ## [Can ZED camera recognize a small object (e. g. bolt washer) from distance 1m?](https://community.stereolabs.com/t/can-zed-camera-recognize-a-small-object-e-g-bolt-washer-from-distance-1m/303)
**Author:** [@trojek](https://community.stereolabs.com/u/trojek)\ **Replies:** 1\ **Last updated:** [July 9, 2021, 1:26pm UTC](https://community.stereolabs.com/t/can-zed-camera-recognize-a-small-object-e-g-bolt-washer-from-distance-1m/303 "2021-07-09T13:26:37Z")
I have a use case in which I need to count small objects (e. g. bolt washer) which lie on a flat surface. The objects have a height of about 1-2 mm. The camera can be mounted parallel to the flat surface. I don’t need t… --- ## [A problem about installing SDK of zed 2i](https://community.stereolabs.com/t/a-problem-about-installing-sdk-of-zed-2i/326)
**Author:** [@wildpig888](https://community.stereolabs.com/u/wildpig888)\ **Replies:** 3\ **Last updated:** [July 8, 2021, 2:27pm UTC](https://community.stereolabs.com/t/a-problem-about-installing-sdk-of-zed-2i/326 "2021-07-08T14:27:57Z")
Hi! I met a error when installing the SDK 3.5.0。 my environment: cuda 10.2 ubuntu 18.04 package:ZED\_SDK\_Ubuntu18\_cuda10.2\_v3.5.0.run The mistake shows: The following packages have unsatisfied dependencies: Libusb… --- ## [Touchless Computer Control](https://community.stereolabs.com/t/touchless-computer-control/297)
**Author:** [@prelee](https://community.stereolabs.com/u/prelee)\ **Replies:** 0\ **Last updated:** [June 20, 2021, 12:58pm UTC](https://community.stereolabs.com/t/touchless-computer-control/297 "2021-06-20T12:58:59Z")
Does anyone know of a Python or pre-made software that can use a Zed Mini and work as a touchless interface for a computer? I.E. use the Zed Mini to register touch points as if a surface were a tablet or touch screen? S… --- ## [Opengl problem zed 2 camera](https://community.stereolabs.com/t/opengl-problem-zed-2-camera/162)
**Author:** [@dlraro](https://community.stereolabs.com/u/dlraro)\ **Replies:** 4\ **Last updated:** [June 18, 2021, 12:34pm UTC](https://community.stereolabs.com/t/opengl-problem-zed-2-camera/162 "2021-06-18T12:34:05Z")
Hello Everyone I have installed all the requirements and i have run a couple of demos but when i try to run object\_detection\_image\_viewer.py it gives me this error OpenGL.error.NullFunctionError: Attempt to call an und… --- ## [Setting up Multiple Cameras on One Host](https://community.stereolabs.com/t/setting-up-multiple-cameras-on-one-host/269)
**Author:** [@cpene1](https://community.stereolabs.com/u/cpene1)\ **Replies:** 1\ **Last updated:** [June 11, 2021, 9:25am UTC](https://community.stereolabs.com/t/setting-up-multiple-cameras-on-one-host/269 "2021-06-11T09:25:25Z")
Hi! I was wondering if there is any documentation on how to setup multiple camera on 1 host. I was hoping to get some information from the docs: https://www.stereolabs.com/docs/video/multi-camera/#setting-up-multiple-c… --- ## [Baseline value in .conf calibration file](https://community.stereolabs.com/t/baseline-value-in-conf-calibration-file/283)
**Author:** [@lks90](https://community.stereolabs.com/u/lks90)\ **Replies:** 2\ **Last updated:** [June 10, 2021, 12:42pm UTC](https://community.stereolabs.com/t/baseline-value-in-conf-calibration-file/283 "2021-06-10T12:42:15Z")
I’m executing the calibration of my Zed camera using the Camera Calibration Toolbox for Matlab (Camera Calibration Toolbox for Matlab) I get the intrinsics and extrinsic parameters without problems following the example… --- ## [Zed Explorer Crashing](https://community.stereolabs.com/t/zed-explorer-crashing/238)
**Author:** [@Sanidhya](https://community.stereolabs.com/u/Sanidhya)\ **Replies:** 2\ **Last updated:** [May 26, 2021, 7:32pm UTC](https://community.stereolabs.com/t/zed-explorer-crashing/238 "2021-05-26T19:32:28Z")
System Config: Windows Virtual Machine Processor: Intel Xeon GPU: Nvidia Tesla P100 RAM: 112 GB Zed Explorer crashes after 1-2 seconds after opening. Zed Depthviewer just displays plain white screen. Tried with zed … --- ## [Position getting stuck on Xavier AGX, SDK3.3.3](https://community.stereolabs.com/t/position-getting-stuck-on-xavier-agx-sdk3-3-3/229)
**Author:** [@MattC11](https://community.stereolabs.com/u/MattC11)\ **Replies:** 4\ **Last updated:** [May 13, 2021, 6:41pm UTC](https://community.stereolabs.com/t/position-getting-stuck-on-xavier-agx-sdk3-3-3/229 "2021-05-13T18:41:06Z")
I am having an issue where the position tracking stops updating after an indeterminate (anywhere from 5 minutes to 2hours) amount of time. Depth output continue to be correct. The camera.getPosition(…) output continue … --- ## [How to get the extrinsic parameters from a extrinsic parameters matrix?](https://community.stereolabs.com/t/how-to-get-the-extrinsic-parameters-from-a-extrinsic-parameters-matrix/242)
**Author:** [@lks90](https://community.stereolabs.com/u/lks90)\ **Replies:** 2\ **Last updated:** [May 13, 2021, 7:37am UTC](https://community.stereolabs.com/t/how-to-get-the-extrinsic-parameters-from-a-extrinsic-parameters-matrix/242 "2021-05-13T07:37:53Z")
I executed the calibration between two cameras and got the intrinsic and extrinsic parameters. My problem is that the extrinsic parameters are in the \[R | T\] matrix format (3x4): \[r1 r2 r3 t1; r4 r5 r6 t2; r7 r8 r9 t… [Previous page](https://community.stereolabs.com/c/uncategorized/1.md) [Next page](https://community.stereolabs.com/c/uncategorized/1.md?page=2)